
.book-list {
    margin-right: -4%;
}
.book-list .book {
    width: 46%;
    margin: 0 4% 2rem 0;
    background: #000;
    background: rgba(0, 0, 0, 0.5);
    box-shadow: 0.5rem 0.5rem 3rem rgba(0, 0, 0, 0.5);
}
.book-list .book:hover{
    background: rgba(0, 0, 0, 0.75);
    box-shadow: 0.5rem 0.5rem 3rem rgba(0, 0, 0, 0.75);
}
.book-list .book:nth-child(2n+1) {
    clear: left;
}
.book-list .cover {
    display: block;
    float: left;
    max-width: 300px;
    min-height: 400px;
    margin-right: 20px;
}
.book-list .cover img {
    min-width: 240px;
    max-width: 300px;
}
.book-list .info {
    margin: 10px 15px 0 0;
}
.book-list .info dd {
    padding: 0;
    margin: 0;
}
.book-list dt.title {
    margin: 0 0 1rem 0;
    line-height: 2.5rem;
    font-size: 2rem;
}
.book-list dd.author {
    margin: 0 0 1rem 0;
    line-height: 1.5rem;
    font-size: 1.2rem;
    color: #ccc;
}
.book-list dd.summary {
    overflow: hidden;
    max-height: 15rem;
    line-height: 1.5rem;
    font-size: 1.2rem;
    color: #ccc;
}

a.btn-prev, a.btn-next {
    position: fixed;
    top: 60%;
    display: block;
    width: 7rem;
    height: 20rem;
    margin-top: -10rem;
    text-align: center;
    line-height: 20rem;
    font-size: 1.5rem;
    background: #000;
    opacity: 0.5;
}
a.btn-prev:hover, a.btn-next:hover {
    background: #e62948;
    opacity: 1;
}
a.btn-prev {
    left: 0;
}
a.btn-next {
    right: 0;
}
